dyed-in-the-wool
US /ˌdaɪd.ɪn.ðəˈwʊl/
UK /ˌdaɪd.ɪn.ðəˈwʊl/

1.
katıksız, köklü, gerçek
having very strong beliefs, opinions, or habits that are not likely to change
:
•
He's a dyed-in-the-wool conservative.
O katıksız bir muhafazakar.
•
She's a dyed-in-the-wool optimist, always seeing the bright side.
O katıksız bir iyimser, her zaman olumlu tarafı görür.